Sex change in sequentially hermaphroditic slipper limpets

Lead Investigator: Maryna Lesoway
Affiliation: MBL Whitman Fellow, University of Illinois at Champaign Urbana (home institution)
Funding Source(s): MBL Whitman Fellowship, Fonds de recherche du Québec Nature et Technologie (FRQNT) Postdoctoral Fellowship, NSF

Unlike most animals, slipper limpets change sex from male to female as they grow. This is thought to be a way to increase the reproductive output of these sedentary, filter-feeding snails. However, the developmental mechanisms are poorly known, even though sex change in these animals has been studied for more than a century. Comparing development in the slipper limpets Crepidula fornicata, Crepidula convexa, and Crepidula plana, I will explore the developmental origins of the reproductive system, development of the reproductive organs, and the transition from male to female using developmental techniques including lineage tracing and cell ablation, as well as pharmacological manipulations to induce sex change.

Multi-Cropping Shellfish and Macroalgae for Business and Bioextraction

Scott plus algae compressedPI: Scott Lindell, Scientific Aquaculture Program, MBL. Funding: WHOI-Seagrant
Description: Nutrient enrichment from septic systems is one of the most pressing coastal problems on Cape Cod. Towns are facing staggering costs for sewering and other solutions. This project aims to investigate whether a native seaweed, Gracilaria tikvahiae, can be co-farmed together with oysters to both soak up nutrients and produce a marketable crop.

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